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Ray Of Light [21]
2 years ago
9

PLEASE SOMEONE PLEASEEE HELP ASAP

Mathematics
1 answer:
nlexa [21]2 years ago
5 0

Answer:

52/63

Step-by-step explanation:

Given the expression;

4/7 * 13/9

WE are to take the product

= (4/9)* (13/7)

= (4*13)/(7*9)

= 52/63

Hence the required fraction is  52/63

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If a 40 foot telephone pole casts a 34 foot shadow at the same time that a nearby tree casts a 28 foot shadow, how tall is the t
kodGreya [7K]

Answer:

22

Step-by-step explanation:

40 - 34 = 6

28 - 6 = 22


I'm not sure if there's any dividing or multiplying involved in this but I did my best..

4 0
3 years ago
X^2-5x-24=0<br><br> 3x^2+x-4=0<br><br> Solve by factoring or using the quadratic formula
grin007 [14]
x^2-5x-24=0\\\\-5x=3x-8x\\-24=3\cdot(-8)\\\\x^2-5x-24=0\\\\\Downarrow\\\\(x+3)(x-8)=0\iff x+3=0\ \vee\ x-8=0\\\\x=-3\ \vee\ x=8

==============================================================

3x^2+x-4=0\\\\a=3;\ b=1;\ c=-4\\\\\Delta=b^2-4ac\to\Delta=1^2-4\cdot3\cdot(-4)=1+48=49\\\\x_1=\frac{-b-\sqrt\Delta}{2a}\to x_1=\frac{-1-\sqrt{49}}{2\cdot3}=\frac{-1-7}{6}=\frac{-8}{6}=-\frac{4}{3}\\\\x_2=\frac{-b+\sqrt\Delta}{2a}\to x_2=\frac{-1+\sqrt{49}}{2\cdot3}=\frac{-1+7}{6}=\frac{6}{6}=1
6 0
3 years ago
Read 2 more answers
What is 3.574 to 1 decimal place ?
Verizon [17]

It depends how you get the shorter number.

If you truncate 3.574 to one decimal place, it's  3.5 .

If you round 3.574 to one decimal place, it's  3.6 .

5 0
3 years ago
If z is a positive integer, does 4 + 3(2z-5) represent a number that is greater than,less than ,or equal to 2(3z-4)? Please show
DochEvi [55]
4 + 3( 2(4) - 5)
= 4 + 24-5
= 28-5
= 23

2(3(4) -4)
= 2(12) -4
= 24 -4 = 20



4+3(2z-5) > 2(3z-4)
4 0
3 years ago
Read 2 more answers
If bcd~gef find value of x
ddd [48]

Answer:

x = 13

Step-by-step explanation:

Given

See attachment

Required

Find x

From the attachment, we have:

BC = x + 4

BD = 2x - 7

GE = 51

GF = 57

Because both triangles are similar, we use the following equivalent ratios:

BC : BD = GE : GF

Substitute values for each parameter

x + 4 : 2x- 7 = 51 : 57

Convert to fractions

\frac{x + 4}{2x- 7} = \frac{51 }{ 57}

Simplify the right-hand side

\frac{x + 4}{2x- 7} = \frac{17}{19}

Cross Multiply

19(x + 4) = 17(2x - 7)

19x + 76 = 34x - 119

Collect Like Terms

19x - 34x = -76 - 119

-15x = -195

Solve for x

x = \frac{-195}{-15}

x = 13

3 0
3 years ago
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